﻿using System;
using System.Text;

public partial class CodeBehind : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        StringBuilder sb = new StringBuilder();
        if (Page.IsPostBack)
        {
            sb.Append("页面提交加载:" + Page.Request.UserAgent);
        }
        sb.Append("页面首次加载:" + Page.Request.UserHostAddress);
        lblMessage.Text = sb.ToString();
    }
}